Nautilus: The Biology and Paleobiology of a Living Fossil, by Richard Arnold Davis (auth.), W. Bruce Saunders, Neil H.

By Richard Arnold Davis (auth.), W. Bruce Saunders, Neil H. Landman (eds.)

This quantity is a reprint of a vintage publication approximately Nautilus, first released in 1987, with an introductory bankruptcy summarizing the entire paintings on Nautilus and its habitat because the e-book of the 1st version greater than twenty years in the past. The surge in articles within the final twenty years exhibits an multiplied curiosity within the topic, reflecting a renewed appreciation of the complexity and fragility of the marine habitat and its biota. The 37 chapters are written through forty eight specialists within the box and canopy all features of this residing fossil from its ecology to its embryology. This quantity additionally good points new photographs, together with a magnificent picture of the 1st hatched Nautilus in captivity. Nautilus is an iconic animal within the marine realm and represents a part of the various fauna of the Indo-Pacific. it's also a member of a lineage of shelled cephalopods relationship again greater than four hundred million years. consequently, this quantity could be proper to the fields of marine technological know-how, evolutionary biology, and paleontology.

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Extra resources for Nautilus: The Biology and Paleobiology of a Living Fossil, Reprint with additions

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124] Sinclair et al. (2007) used molecular techniques to examine relationships between two populations of Nautilus in the northern sections of the Great Barrier Reef, Australia, and in the Coral Sea. The two populations are distinct. These results reflect the fact that Nautilus inhabits the reef-slope up to approximately 500 m but is not an open water swimmer, precluding travel across expanses in excess of 1,000 m depth. [11, 175] Baratte et al. (2007) reported the first findings of the engrailed gene in a cephalopod, Sepia officinalis, and discussed the role of engrailed Introduction xlv in the evolution of the cephalopod body plan.

Scrobiculatus. In general, the concentration of magnesium is higher and more variable in juveniles Introduction lxiii than in adults, suggesting that the physiochemical system becomes more efficient relative to carbonate production with maturation. The four species exhibit sufficiently different concentrations of strontium and magnesium in the shell wall to permit taxonomic discrimination. [73] Mann (1992) examined the concentration of magnesium and strontium in the shell wall and septa of four species of Nautilus including N.

Using a Pavlovian conditioning paradigm, they experimentally demonstrated that N. pompilius has temporally separated short- and long-term memory stores, producing a biphasic memory curve similar to that found for cuttlefish. Short-term memory generally xlviii Introduction persisted for less than 1 hr post-training and long-term memory for 6 to 24 hrs, again similar to what has been reported for other cephalopods. Thus, the authors concluded that the absence of the dedicated neural regions that support learning and memory found in the brains of other extant cephalopods does not limit memory expression in Nautilus.

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